1990281 is an odd 7-digits composite number following 1990280
and preceding 1990282 . In scientific notation, it is written as 1.990281 × 10^6.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 1321920 positive integers (up to 1990281) that are relatively prime to 1990281.
1990281 has 8 divisors, whose sum is 2663584
The reverse of 1990281 is 1820991
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
one million nine hundred ninety thousand two hundred eighty-one
Scientific notation
1.990281 × 10^6
Engineering notation
1.990281 × 10^6
Prime Factorization
3 × 307 × 2161
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990281
Product of the distinct prime numbers
The prime factorization of 1990281 is 3 × 307 × 2161.
Since it has a total of 3 prime factors.
7 , 3 , 15 , 44 , 546 , 235 , 3636 , 9684 , 3875 , 67347 , 359958 , 99535 , 7663717 , 6673783 , 46362748 , 70084450 , 299624353 , 610607102 , 7921359420 , 9254172586
n×2
3980562
n×3
5970843
n×4
7961124
n×5
9951405
n÷2
995140.5
n÷3
663427
n÷3
497570.25
n÷5
398056.2
n2
3961218458961
n3
7883937835719358041
n4
1.5691251679613E+25
n5
3.1230000084153E+31
2 √n
1410.7731922602
3 √n
125.78768729705
4 √n
37.56026081193
5 √n
18.187913472427
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990281 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990281) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100101111010001001
3
Ternary
10202010011010
4
Quaternary
13211322021
5
Quinary
1002142111
6
Senary
110354133
8
Octal
7457211
10
Decimal
1990281
12
Duodecimal
7bb949
16
Hexadecimal
1e5e89
20
Vigesimal
c8fe1
36
Base36
16npl
md5
4f06b1cf7f1d5331fc0804e34aad74d4
sha1
ea5974166bd70598dd3361434269831097bccaeb
sha256
3c887e08640fc56cd4446fd46a4991633b8c63d35641134080a77cd247ea2905
sha512
aa54fce4f864609d461fb8b2966150dca530588bc1bbb4c9cc8ee20cea2369970e2fe001c949d6cb510be6987391b14897bed460ea04cdd7c9f70c82cca5f758
ripemd-160
cfc935e955db77a66cced8f12068d9ee87529b02
Diameter
3980562
Circumference
12505304.336359
Area
12444534809936
Volume
3.3024161581406E+19
Surface area
49778139239745
Circumference
12505304.336359
Perimeter
7961124
Area
3961218458961
Diagonal
2814682.3831335
Surface area
23767310753766
Volume
7883937835719358041
Space diagonal
3447267.813339
Perimeter
5970843
Area
1715257907700
Altitude
1723633.9066695
Surface area
1715257907700
Volume
9.2913098434839E+17
Height
938227.4610445